Custom purchase requsitionto vendor open and cleared payment report

Question

dear all i develop report but i cant ableto show in that open amount and cleared amount of vender in that report so please see this report and feedback me for logic to show open and clear amount of vendor purchase orderwise or vendorwise
report zpo_purchase_history no standard page heading message-id 00.
TABLES : bsik, bsak, lfa1, lfb1, skb1, t001, bapifvdexp_vzzbepp.
type-pools:slis,ICON.
types :begin of ty_po,
        banfn type eban-banfn,
        "Purchase Requisition Number
        bnfpo type eban-bnfpo,
        "Item Number of Purchase Requisition
        ekgrp type eban-ekgrp,                 "Purchasing Group
        badat type eban-badat,
        "Requisition (Request) Date
        menge type eban-menge,
        KNTTP TYPE EBAN-KNTTP,
         PSTYP type eban-PSTYP,
        "Purchase Requisition Quantity
        meins type eban-meins,
        "Purchase Requisition Unit of Measure
        lifnr type ekko-lifnr,                 "Vendor Account Number
        bedat type ekko-bedat,                 "Purchasing Document Date
        ebeln type ekpo-ebeln,
        "Purchasing Document Number
        ebelp type ekpo-ebelp,
        "Item Number of Purchasing Document
        matkl type ekpo-matkl,                 "Material Group
        mtart type ekpo-mtart,                 "Material Type
        matnr type ekpo-matnr,                 "Material Number
        txz01 type ekpo-txz01,                 "Short Text
        menge1 type ekpo-menge,                "Purchase Order Quantity
        meins1 type ekpo-meins,
        "Purchase Order Unit of Measure
        balqty type ekpo-menge,                "Balance Quantity
        netpr type ekpo-netpr,
        "Net Price in Purchasing Document
        peinh type ekpo-peinh,                 "Price Unit
        mblnr type mseg-mblnr,
        "Number of Material Document
        zeile type mseg-zeile,                 "Item in Material Document
        menge2 type mseg-menge,                "GR Quantity
        meins2 type mseg-meins,                "GR Unit of Measure
        werks type mseg-werks,                 "Plant
        charg type mseg-charg,                 "Batch
        belnr type rbkp-belnr,
        "Document Number of an Invoice Document
        bldat type ekbe-bldat,                 "Document Date in Document
        belnr_b type rbkp-belnr,
        SHKZG type ekbe-SHKZG ,                "Debit/Credit Indicator
        DMBTR type   bsik-dmbtr,                "Amount in Local Currency
        DMBTR_C type   bsAk-dmbtr,                "Amount in Local Currency
        thick(10) type c,                      "Thickness
        width(10) type c,                      "Width
        length(10) type c,                     "Length
        grade(10) type c,                        "Grade
        BELNR_d type bseg-belnr,
        xblnr type bkpf-xblnr,
        awkey  type bkpf-awkey,
        RMWWR type rbkp-RMWWR,
        WMWST1 type rbkp-WMWST1,
        end of ty_po.
types :begin of ty_ekko,
        ebeln type ekko-ebeln,
        lifnr type ekko-lifnr,
        bedat type ekko-bedat,
        end of ty_ekko.
types:begin of ty_ekpo,
        ebeln type ekpo-ebeln,
        ebelp type ekpo-ebelp,
        matnr type ekpo-matnr,
        txz01 type ekpo-txz01,
        menge type ekpo-menge,
        meins type ekpo-meins,
        netpr type ekpo-netpr,
        peinh type ekpo-peinh,
        banfn type ekpo-banfn,
        bnfpo type ekpo-bnfpo,
        mtart type ekpo-mtart,
        end of ty_ekpo.
types :begin of ty_eban,
        banfn type eban-banfn,
        bnfpo type eban-bnfpo,
        matnr type eban-matnr,
        menge type eban-menge,
        meins type eban-meins,
        end of ty_eban.
types : begin of ty_ekbe,
         ebeln type ekbe-ebeln,
         ebelp type ekbe-ebelp,
         belnr type ekbe-belnr,
         bldat type ekbe-bldat,
         gjahr type ekbe-gjahr,
         buzei type ekbe-buzei,
         matnr type ekbe-matnr,
         DMBTR type ekbe-dmbtr,
         shkzg type ekbe-shkzg,
         end of ty_ekbe.
types : begin of ty_mseg,
         mblnr type mseg-mblnr,
         mjahr type mseg-mjahr,
         zeile type mseg-zeile,
         menge type mseg-menge,
         meins type mseg-meins,
         ebeln type mseg-ebeln,
         ebelp type mseg-ebelp,
         matnr type mseg-matnr,
         werks type mseg-werks,
         charg type mseg-charg,
         end of ty_mseg.
types : begin of ty_rbkp,
         belnr type rbkp-belnr,
         gjahr type rbkp-gjahr,
         bldat type rbkp-bldat,
         lifnr type rbkp-lifnr,
         ZUONR type rbkp-ZUONR,
         RMWWR type rbkp-RMWWR,
         WMWST1 type rbkp-WMWST1,
         end of ty_rbkp.
types : begin of ty_bseg,
         bukrs type bseg-bukrs,
         belnr type bseg-belnr,
         gjahr type bseg-gjahr,
         buzei type bseg-buzei,
         valut type bseg-valut,
         wrbtr type bseg-wrbtr ,
         augbl type bseg-augbl,
         matnr type bseg-matnr,
         lifnr type bseg-lifnr,
         ebeln type bseg-ebeln,
         end of ty_bseg.
types : begin of ty_rseg,
         belnr type rseg-belnr,
         gjahr type rseg-gjahr,
         ebeln type rseg-ebeln,
         ebelp type rseg-ebelp,
         matnr type rseg-matnr,
         bukrs type rseg-bukrs,
         end of ty_rseg.
types : begin of ty_bsik,
         belnr type bsik-belnr,
          buzei type bsik-buzei,
         DMBTR type bsik-DMBTR,
         budat type bsik-budat,
         shkzg type bsik-shkzg,
         ebeln type bsik-ebeln,
         lifnr type bsik-lifnr,
         end of ty_bsik.
types : begin of ty_bsak,
         belnr type bsak-belnr,
   lifnr type bsak-lifnr,
    ebeln type bsak-ebeln,
         DMBTR_C type bsak-DMBTR,
ZUONR type bsak-ZUONR,
         end of ty_bsak.
types: begin of ty_bkpf,
         BELNR type bkpf-belnr,
         xblnr type bkpf-xblnr,
         awkey  type bkpf-awkey,
       end of ty_bkpf.
data: it_po type standard table of ty_po,
       it_ekko type standard table of ty_ekko,
       it_ekpo type standard table of ty_ekpo,
       it_eban type standard table of ty_eban,
       it_ekbe type standard table of ty_ekbe,
       it_mseg type standard table of ty_mseg,
       it_rbkp type standard table of ty_rbkp,
       it_rseg type standard table of ty_rseg,
       it_bseg type standard table of ty_bseg,
       it_bsik type STANDARD TABLE OF ty_bsik with header line,
       it_bsak type STANDARD TABLE OF ty_bsak,
       it_bkpf type standard table of ty_bkpf,
       wa_po type ty_po,
       wa_ekko type ty_ekko,
       wa_ekpo type ty_ekpo,
       wa_eban type ty_eban,
       wa_mseg type ty_mseg,
       wa_rbkp type ty_rbkp,
       wa_rseg type ty_rseg,
       wa_bseg type ty_bseg,
       wa_ekbe type ty_ekbe,
       wa_bsik type ty_bsik,
       wa_bsak type ty_bsak,
       wa_bkpf type ty_bkpf.
data: it_fcat type slis_t_fieldcat_alv,
       it_lshead type slis_t_listheader,
       it_sort type slis_t_sortinfo_alv,
       wa_fcat type slis_fieldcat_alv,
       wa_lshead type slis_listheader,
       wa_layout type slis_layout_alv,
       wa_sort type slis_sortinfo_alv.
data :it_cl_data like table of clobjdat,
       wa_cl_data like clobjdat.
data: values(10) type n.
data: value1(4) type N.
data: c_matkl type ekpo-matkl,
       c_matnr type ekpo-matnr,
       c_ekgrp type eban-ekgrp,
       c_badat type eban-badat,
       c_index type sy-tabix,
       c_grmenge type mseg-erfmg,
       c_low(10) type c,
       c_high(10) type c,
       c_date type string,
       c_bukrs type ekko-bukrs,
       c_WERKS type eban-WERKS.
data: gd_date(10).
DATA: V_EVENTS TYPE SLIS_T_EVENT,
       WA_EVENT TYPE SLIS_ALV_EVENT.
*********Selection screen variables*********
selection-screen:begin of block b1 with frame title text-001.
select-options: s_bukrs for c_bukrs DEFAULT  'bmp1',
                 s_WERKS for c_WERKS,
                 s_matnr for c_matnr DEFAULT 'rm-01',
                 s_matkl for c_matkl ,
                 s_badat for c_badat ,"obligatory,
                 s_ekgrp for c_ekgrp.
parameters: ch_bal as checkbox.
selection-screen:end of block b1.
*initialization.
* PERFORM EVENT_CALL.
*  PERFORM POPULATE_EVENT.
start-of-selection.
     PERFORM EVENT_CALL.
   PERFORM POPULATE_EVENT.
   perform getdata.
   perform setdata.
   perform fieldcat.
   perform display.
*&      Form  GETDATA
form getdata .
   select a~BANFN
          a~bnfpo
          a~ekgrp
          a~badat
          a~KNTTP
          a~PSTYP
          b~ebeln
          b~ebelp
          b~matkl
          b~matnr
          b~bukrs
          into corresponding fields of table it_po
          from eban as a inner join ekpo as b
          on a~banfn = b~banfn and
             a~bnfpo = b~bnfpo AND
             A~KNTTP = B~KNTTP and
             a~PSTYP = b~PSTYP
          where  a~badat in s_badat and
                 a~ekgrp in s_ekgrp and
                 a~WERKS in s_WERKS and
                 b~matnr in s_matnr and
                 b~matkl in s_matkl and
                 b~bukrs in s_bukrs and
                 b~loekz <> 'L' and
                 a~loekz <> 'X'.
   if it_po[] is not initial.
     select ebeln
            ebelp
            matnr
            txz01
            menge
            meins
            netpr
            peinh
            banfn
            bnfpo
            mtart
            from ekpo into table it_ekpo
            for all entries in it_po
            where ebeln = it_po-ebeln and
                  ebelp = it_po-ebelp and
                  loekz <> 'L'.
     select banfn
            bnfpo
            matnr
            menge
            meins
            from eban into table it_eban
            for all entries in it_po
            where banfn = it_po-banfn and
                  bnfpo = it_po-bnfpo and
                  loekz <> 'X'.
     if it_ekpo[] is not initial.
       select ebeln
              lifnr
              bedat
              from ekko into table it_ekko
              for all entries in it_ekpo
              where ebeln = it_ekpo-ebeln.
       select ebeln
              ebelp
              belnr
              bldat
              gjahr
              buzei
              matnr
              DMBTR
              shkzg
              from ekbe into table it_ekbe
              for all entries in it_ekpo
              where ebeln = it_ekpo-ebeln and
                    ebelp = it_ekpo-ebelp .
*if it_ekbe-shkzg = 'H'.
**ekbe-dmbtr = ekbe-dmbtr * -1.
**ekbe-menge = ekbe-menge * -1.
*endif.
* select belnr
*             gjahr
*             ebeln
*             ebelp
*     from bseg into table it_bseg
*             for all entries in it_ekpo
*             where ebeln = it_ekpo-ebeln and
*                   ebelp = it_ekpo-ebelp.
       select belnr
              gjahr
              ebeln
              ebelp
              matnr
              bukrs
              from rseg into table it_rseg
              for all entries in it_ekpo
              where ebeln = it_ekpo-ebeln and
                    ebelp = it_ekpo-ebelp.
     endif.
     if it_ekbe[] is not initial.
       select mblnr
              mjahr
              zeile
              menge
              meins
              ebeln
              ebelp
              matnr
              werks
              charg
              from mseg into table it_mseg
              for all entries in it_ekbe
              where mblnr = it_ekbe-belnr and
                    mjahr = it_ekbe-gjahr and
                    zeile = it_ekbe-buzei and
                    bwart = '101'.
     endif.
     if it_rseg[] is not initial.
       select belnr
              gjahr
              bldat
              lifnr
              ZUONR
              RMWWR
              WMWST1
              from rbkp into table it_rbkp
              for all entries in it_rseg
              where belnr = it_rseg-belnr.
     endif.
*if it_rseg[] is not initial.
*      SELECT bukrs
*              belnr
*              gjahr
*              buzei
*              valut
*              wrbtr
*              augbl
*              matnr
*              lifnr
*              ebeln
*        INTO TABLE it_bseg
*          FROM bseg
*          FOR ALL ENTRIES IN it_rseg
*          WHERE bukrs = it_rseg-bukrs and ebeln = it_rseg-ebeln and mwskz = ''.
*endif.
*loop at it_BKPF into wa_BKPF.
*  values = wa_rbkp-belnr.
*  value1 = wa_rbkp-gjahr.
   data: aekey_1 type string .
*CONCATENATE values value1 into aekey_1.
*  if it_BSEG[] is not initial.
*MESSAGE aekey_1 type 'I'.
       SELECT single belnr xblnr awkey into wa_bkpf
         from bkpf
         where awkey = aekey_1.
SELECT SINGLe belnr
buzei
dmbtr
budat
   shkzg
   ebeln
   lifnr
   FROM bsik
INTO CORRESPONDING FIELDS OF  wa_bsik
*FOR ALL ENTRIES IN it_bseg
WHERE
    bukrs in s_bukrs and
    lifnr = wa_rbkp-lifnr
and
*AND gjahr = it_bseg-gjahr
* AND
    belnr = wa_bkpf-belnr.
insert wa_bsik into table it_bsik.
CLEAR wa_bsik.
CLEAR it_bsik.
*endloop.
* and ebeln = it_bseg-ebeln .
*    select BELNR
**           SHKZG
**           DMBTR
*           from bkpf into table it_bkpf
*            for ALL ENTRIES IN it_rbkp
*            where belnr = it_rbkp-belnr.
*        ENDif.
IF IT_bseg[] IS NOT INITIAL.
       select belnr
         LIFNR
         ebeln
              DMBTR
          ZUONR
              from bsik into table it_bsik
              for all entries in it_bseg
              where belnr = it_bseg-belnr.
       select belnr
         LIFNR
         ebeln
              DMBTR
          ZUONR
              from bsak into table it_bsak
              for all entries in it_bseg
              where belnr = it_bseg-belnr.
ENDIF.
   else.
     message s002.
     leave list-processing.
   endif.
endform.                    " GETDATA
*&      Form  SETDATA
form setdata .
   clear wa_po.
   loop at it_po into wa_po.
     c_index = sy-tabix.
********Calculate PR Quantity**********
     clear wa_eban.
     read table it_eban into wa_eban
                with key banfn = wa_po-banfn
                         bnfpo = wa_po-bnfpo.
     if sy-subrc eq 0.
       move:wa_eban-menge to wa_po-menge,
            wa_eban-meins to wa_po-meins.
     endif.
********Calculate PO Quantity**********
     clear wa_ekpo.
     read table it_ekpo into wa_ekpo
                with key banfn = wa_po-banfn
                         bnfpo = wa_po-bnfpo .
     if sy-subrc eq 0.
       move:wa_ekpo-txz01 to wa_po-txz01,
            wa_ekpo-netpr to wa_po-netpr,
            wa_ekpo-peinh to wa_po-peinh,
            wa_ekpo-mtart to wa_po-mtart,
            wa_ekpo-menge to wa_po-menge1,
            wa_ekpo-meins to wa_po-meins1.
     endif.
********Calculate Balance Quantity******
     clear wa_mseg.
     loop at it_mseg into wa_mseg
            where ebeln = wa_po-ebeln and
                  ebelp = wa_po-ebelp.
       c_grmenge = c_grmenge + wa_mseg-menge.
     endloop.
     move:wa_mseg-mblnr to wa_po-mblnr,
          c_grmenge to wa_po-menge2,
          wa_mseg-meins to wa_po-meins2,
          wa_mseg-werks to wa_po-werks,
          wa_mseg-charg to wa_po-charg.
     wa_po-balqty = wa_eban-menge - c_grmenge.
     clear : wa_rseg,wa_rbkp.
     read table it_rseg into wa_rseg with key
                    ebeln = wa_mseg-ebeln
                    ebelp = wa_mseg-ebelp.
     read table it_rbkp into wa_rbkp
                with key belnr = wa_rseg-belnr
                         gjahr = wa_rseg-gjahr.
     if sy-subrc eq 0.
       move : wa_rbkp-belnr to wa_po-belnr,
              wa_rbkp-bldat to wa_po-bldat,
              wa_rbkp-RMWWR to wa_po-RMWWR,
              WA_RBKP-WMWST1 TO WA_PO-WMWST1.
     endif.
       read table it_bseg into wa_bseg with key
                     ebeln = wa_rseg-ebeln
                     bukrs = wa_rseg-bukrs.
       if sy-subrc eq 0.
         move wa_bseg-belnr to wa_po-belnr_d.
       endif.
*    read table it_bkpf into wa_bkpf
*    with key belnr = wa_ekbe-belnr.
*    read table it_bseg into wa_bseg
*    with key belnr = wa_bkpf-belnr.
CLEAR wa_bsik.
clear it_bsik.
     read table it_bsik into wa_bsik
     with key belnr = wa_bkpf-belnr.
*    if wa_bsik-shkzg = 'H'.
*     wa_bsik-DMBTR = wa_bsik-DMBTR * 1.
*     endif.
       if sy-subrc eq 0.
         move : wa_bsik-belnr to wa_po-belnr,
                 wa_bsik-DMBTR to wa_po-DMBTR.
        endif.
*    clear wa_bsik.
*    read table it_bsik into wa_bsik
*               with key  belnr = wa_bseg-belnr.
*    if sy-subrc eq 0.
*        move : wa_bsik-DMBTR to wa_po-DMBTR.
*    endif.
*clear wa_bsak.
*    read table it_bsak into wa_bsak
*               with key  belnr = wa_bseg-belnr.
*    if sy-subrc eq 0.
*        move : wa_bsak-DMBTR_C to wa_po-DMBTR_C.
*    endif.
*clear : wa_rbkp.
*loop at it_bsik into wa_bsik.
*read table it_bsik into wa_bsik with key belnr = wa_rbkp-belnr.
*if sy-subrc eq 0.
*  move : wa_bsik-DMBTR to wa_po-DMBTR.
*    endif.
*endloop.
*********Assign Vendor,PO Date*********
     clear wa_ekko.
     read table it_ekko into wa_ekko
                with key ebeln = wa_po-ebeln.
     if sy-subrc eq 0.
       move:wa_ekko-lifnr to wa_po-lifnr,
            wa_ekko-bedat to wa_po-bedat.
     endif.
*clear wa_ekko.
*read table it_ekko into wa_ekko
*with key lifnr = wa_po-lifnr.
*if sy-subrc eq 0.
*  move: wa_bsik-DMBTR to wa_po-DMBTR.
*  endif.
*    call function 'ZSD_BATCH_CLASSIFICATION_DATA'
*      exporting
**        ch_charg                   = wa_po-charg
*        ch_matnr                   = wa_po-matnr
*        ch_werks                   = wa_po-werks
*      tables
*        cl_data                    = it_cl_data
**       I_SEL_CHARACTERISTIC       =
     loop at it_cl_data into wa_cl_data.
       if wa_cl_data-ausp1 ne '?'.
         if wa_cl_data-atnam eq 'THICKNESS'.
           move wa_cl_data-ausp1 to wa_po-thick.
         elseif wa_cl_data-atnam eq 'LENGTH'.
           move wa_cl_data-ausp1 to wa_po-length.
         elseif wa_cl_data-atnam eq 'WIDTH'.
           move wa_cl_data-ausp1 to wa_po-width.
         elseif wa_cl_data-atnam eq 'GRADE'.
           move wa_cl_data-ausp1 to wa_po-grade.
         endif.
       endif.
     endloop.
     modify it_po from wa_po index c_index.
     clear :c_grmenge,wa_po,wa_ekpo,wa_mseg,c_index.
   endloop.
endform.                    " SETDATA
*&      Form  FIELDCAT
*       text
*  -->  p1        text
*  <--  p2        text
form fieldcat .
   perform buildfields using '1' 'BANFN'  'IT_PO' 'PR Number' '' ''.
*  perform buildfields using '2' 'BNFPO'  'IT_PO' 'PR Item Number' '' ''.
   perform  buildfields using '2' 'KNTTP' 'IT_PO' 'A/c Assignment Cat' '' ''.
   perform  buildfields using '2' 'PSTYP' 'IT_PO' 'Item Cat' '' ''.
   perform buildfields using '3' 'EKGRP'  'IT_PO' 'Purchase Group' '' ''.
   perform buildfields using '4' 'BADAT'  'IT_PO' 'Request Date' '' ''.
   perform buildfields using '5' 'MENGE'  'IT_PO' 'PR Quantity'  'X' ''.
   perform buildfields using '6' 'MEINS'  'IT_PO' 'PR Unit' '' ''.
   perform buildfields using '7' 'LIFNR'  'IT_PO' 'Vendor Number' '' ''.
   perform buildfields using '8' 'EBELN'  'IT_PO' 'Purchasing Doc No' '' ''  .
   perform buildfields using '9' 'BEDAT'  'IT_PO' 'PO Date' '' ''.
   perform buildfields using '10' 'MTART' 'IT_PO' 'Material Type' '' ''.
   perform buildfields using '11' 'MATKL' 'IT_PO' 'Material Group' '' ''.
   perform buildfields using '12' 'MATNR' 'IT_PO' 'Material Number' '' ''.
   perform buildfields using '13' 'TXZ01' 'IT_PO' 'Material Desc' '' ''.
   perform buildfields using '18' 'MENGE1' 'IT_PO' 'PO Quantity' 'X' ''.
   perform buildfields using '19' 'MEINS' 'IT_PO' 'PO Unit' '' ''.
   perform buildfields using '20' 'NETPR' 'IT_PO' 'Net Price' '' ''.
   perform buildfields using '21' 'PEINH' 'IT_PO' 'Price Unit' '' ''.
   perform buildfields using '22' 'MBLNR' 'IT_PO' 'GR Number' '' ''.
   perform buildfields using '23' 'MENGE2' 'IT_PO' 'GR Quantity' 'X' ''.
   perform buildfields using '24' 'MEINS2' 'IT_PO' 'GR Unit' '' ''.
   perform buildfields using '25' 'BELNR' 'IT_PO' 'Invoice doc. number' '' ''.
   perform buildfields using '26' 'BLDAT' 'IT_PO' 'Invoice Date' '' ''.
*  perform buildfields using '26' 'BELNR_D' 'IT_POP' 'A/C Doc. No.' '' ''.
*  perform buildfields using '26' 'AUGBL' 'IT_PO' 'Clearing Doc No.' '' ''.
   perform buildfields using '26' 'DMBTR' 'IT_PO' 'OPEN AMOUNT' '' ''.
  perform buildfields using '26' 'DMBTR' 'IT_PO' 'clear AMOUNT' '' ''.
*  perform buildfields using '26' 'DMBTR_C' 'IT_PO' 'Clear balance' '' ''.
   if ch_bal = 'X'.
     perform buildfields using '27' 'BALQTY' 'IT_PO' 'Balance Quantity'
     'X' ''.
   endif.
   perform buildfields using '26' 'WMWST1' 'IT_PO' 'TOTAL TAX ADDED' 'X' ''.
   perform buildfields using '26' 'RMWWR' 'IT_PO' 'TOTAL AMOUNT IN INVOICE' 'X' ''.
endform.                    " FIELDCAT
*&      Form  BUILDFIELDS
*       text
*      -->P_0449   text
*      -->P_0450   text
*      -->P_0451   text
*      -->P_0452   text
form buildfields  using    value(p_col_pos) like sy-cucol
                            value(p_fldname) type slis_fieldname
                            value(p_tabname) type slis_tabname
                            value(p_reptext) like dd03p-reptext
                            value(p_do_sum) type char1
                            value(hotspot) type char1.
   wa_fcat-col_pos = p_col_pos.
   wa_fcat-fieldname = p_fldname.
   wa_fcat-tabname = p_tabname.
   wa_fcat-reptext_ddic = p_reptext.
   wa_fcat-do_sum = p_do_sum.
   wa_fcat-hotspot = hotspot.
   append wa_fcat to it_fcat.
   clear wa_fcat.
endform.                    " BUILDFIELDS
*&      Form  DISPLAY
form display .
   clear wa_layout.
   wa_layout-zebra = 'X'.
   wa_layout-colwidth_optimize = 'X'.
* wa_layout-box_fieldname     = 'SEL'.
* wa_layout-edit = 'X'.
   perform build_sort using 'BANFN' '1' 'X'.
   call function 'REUSE_ALV_GRID_DISPLAY'
    exporting
*   I_INTERFACE_CHECK                 = ' '
*   I_BYPASSING_BUFFER                = ' '
*   I_BUFFER_ACTIVE                   = ' '
      i_callback_program               = sy-cprog
*   I_CALLBACK_PF_STATUS_SET          = ' '
    I_CALLBACK_USER_COMMAND           = 'USER_COMMAND '
      i_callback_top_of_page           = 'TOP_OF_PAGE'
*   I_CALLBACK_HTML_TOP_OF_PAGE       = ' '
*   I_CALLBACK_HTML_END_OF_LIST       = ' '
*   I_STRUCTURE_NAME                  =
    i_background_id                   = 'ALV_BACKGROUND'
*   I_GRID_TITLE                      =
*   I_GRID_SETTINGS                   =
      is_layout                        = wa_layout
      it_fieldcat                      = it_fcat
*   IT_EXCLUDING                      =
*   IT_SPECIAL_GROUPS                 =
     it_sort                           = it_sort
*   IT_FILTER                         =
*   IS_SEL_HIDE                       =
*   I_DEFAULT                         = 'X'
    I_SAVE                            = 'A'
*   IS_VARIANT                        =
*   IT_EVENTS                         =
*   IT_EVENT_EXIT                     =
*   IS_PRINT                          =
*   IS_REPREP_ID                      =
*   I_SCREEN_START_COLUMN             = 0
*   I_SCREEN_START_LINE               = 0
*   I_SCREEN_END_COLUMN               = 0
*   I_SCREEN_END_LINE                 = 0
*   I_HTML_HEIGHT_TOP                 = 0
*   I_HTML_HEIGHT_END                 = 0
*   IT_ALV_GRAPHICS                   =
*   IT_HYPERLINK                      =
*   IT_ADD_FIELDCAT                   =
*   IT_EXCEPT_QINFO                   =
*   IR_SALV_FULLSCREEN_ADAPTER        =
* IMPORTING
*   E_EXIT_CAUSED_BY_CALLER           =
*   ES_EXIT_CAUSED_BY_USER            =
     tables
       t_outtab                          = it_po[]
  exceptions
    program_error                     = 1
    others                            = 2
   if sy-subrc <> 0.
     message id sy-msgid type sy-msgty number sy-msgno
             with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
   endif.
endform.                    " DISPLAY
*&      Form  top_of_page
*       text
form top_of_page.                                           "#EC *
**********Create report header*********
   refresh it_lshead.
   clear wa_lshead.
**********To display date in header*********
*  write: s_badat-low to c_low dd/mm/yyyy,s_badat-high to c_high
*  dd/mm/yyyy.
*  if s_badat-high is initial.
*    concatenate 'Dated on' c_low into c_date separated by space.
*  else.
*    concatenate 'Dated between' c_low 'and' c_high into c_date separated
*    by space.
*  endif.
   wa_lshead-typ = 'H'.
   wa_lshead-info = 'PR To Payment History'.
*  'Pending Indents History -

Answer 1

We had a requirement to retrieve "aging of receiveables" by customer. Basically, it goes thru each record and depending on the due date places the amounts in the following buckets (example). 0-30 day Overdue, 31-60 days Overdue, 61-90 days overdue, 30+ days overdue, 60+ days overdue) etc all the way to 6+ years overdue.
There are also cooresponding buckets for coming due analysis. For example, what is: 0-30 days coming due, 31-60 days coming due, 30+ days coming due, etc...
To do this, first I needed to be able be able to produce an open items statement at any given time in the past. Now, this seems impossible because of how the items go from open to cleared all the time. And an item that was open one month ago, may not be open anymore.
What I did was first remove any selections on item status. Then compare the posting date with teh key date in the past, if the posting date is less than or equal to the key date, keep the record.
Then compare the clearing date with the key date. First, keep all that are #. (This keeps all records still open from that posting date/key date)
Then, add another check for all items that were cleared after the key date (GT Key Date). This gives you the open items on that date.
Hope that makes sense. Let me know if you want clarification.
/smw